Bedstead-lock



(No Model.)

0. H. CLARK. BEDSTEAD 1.001;.

Patented Apr. 11, 1882.

N. PETERS. Photo-Lilhn UNITED STATES PATENT OFFICE.

CHARLES H. CLARK, OF ROCHESTER, NEW YORK.

BEDSTEAD-LOCK.

SPECIIEICATION forming part of Letters Patent No, 256,289, dated April 11, 1852.

Application filed March 13, 1882. (No model.)

To all whom it may concern I Be it known that I, CHARLES H. CLARK, of Rochester, in the county of Monroe and State of New York, have invented a new and useful Improvement in Bedstead-Locks, which improvementis fully set forth in the following specification and accompanying drawings.

The object of my invention is to produce a bedstead-lock of simple construction, consisting of a pair of plates, each provided with mutually-locking inclined lips and channels, said plates being attached respectively to the exterior surfaces of the post and side rail ofv the bedstead to be held together, by means of which the said parts of the bedstead may be easily and securely locked together or unlocked and taken apart, which invention is fully described in the following specification and more particularly pointed out in the claims.

In the accompanying drawings, Figure 1 is a plan of the parts at one corner of a bedstead with my improved lock attached, showing thev post horizontally sectioned; Fig.2, an inside elevation of the same, viewed as indicated by the arrow, parts being sectioned and broken away. Fig. 3 shows in full linescthe plate or part of the lock attached to therail of the bedstead and in dotted lines the part attached to the post, a part of the former being sectioned and broken away. Fig. 4 shows the part attached to the post in full lines and the counterpart, or part attached to the side rail, in dotted lines, a part of the'formerbeing sectioned and broken away. Fig. 5 shows the plate attached to the post of the bedstead, drawn to a larger scale and viewed from an opposite direction from that in which it is seen in the other figures, showing asurface offset or shoulder upon the inner surface and a portion of the post in dotted lines.

In the figures, A represents the post of the bedstead, B the side rail of the same, and C- the head-rail, all of ordinary construction.

F and G are respectively the two plates together forming the look at a single corner of the bedstead, the former being secured by means of screws to the post of the bedstead and. the latter to the side rail, as shown. The

plate F is provided with an inclined lockinglip, a, and parallel channel a between the projecting lip aand the body of theplate, as shown in Fig. 4, and the plate G is-provided with a similar locking-lip, b, and channel 61, as shown in Fig. 3. When the plates are being put together in the act of locking the same the lip b of the plate G slides within the channel 0 of the plate F, and the lip a of the latter plate slides within the channel 01 of the plate G. A projection, e, filling the channel c of the plate F at the lower end thereof, forms a stop to the descent of the plateG when thelatter is slipped onto the plate F, a notch, 8, being cut at the lower end ofthe lip b of the plate G to meet and receive the projection or stop 0 aforesaid. By means of this stoppingdevice the plates are prevented from sliding by each other and binding on account of their wedge-shaped parts when slipped together to form the lock. The plate Gr is secured to the side rail of the bedstead in such a manner that its thick edgefis just flush with the end of the siderailand abuts with said end of the side rail against the post when said rail and post are locked together, as shown in Fig. 1. This forms a broad bearing against the post and adds much to the firmness of the locked joint.

As shown in Figs. 1 and 5, the inside of the plate F is form ed with a longitudinal shoulder, g, made by depressing a part of. the surface of the plate below the other part of the surface adjacent to the channel 0. This in practice amounts to about one twenty-fourth part of an inch, and serves as a simple guide for the work- ;the bedstead, the said shoulder being made to coincide with the corner of the post, as shown in Fig. 1, which shoulder or guide line facilitates the putting together of the parts. When the plates F and G are put upon their respective parts-the post and the side rail-in the manner above described, they will lockharmoniouslytogether and form a strong and rigid joint between said parts of the bedstead, and may be easily unlocked by simply raising the side rail sufficiently to carry the plates G at the ends thereof out of the platesF of the posts. It will be observed thatin applying these plates to the posts and rails no cutting or carving of the timber is necessary, screws merely being driven into the wood to secure the plates to their respective places upon the surfaces of said posts and rails.

IOG

For thepurpose of strength and convenience of construction thelongitudinal corners of the lips and channels are rounded, as shown.

These locks can be cheaply constructed and applied, and bedsteads provided with them can be put up or taken down with the utmost ease and rapidity.

I claim as my invention- 1. In combination with the siderail and post of a bedstead, the plates F and G, each being provided with alongitudinal inclined lockinglip and channel parallel with said lockinglip, substantially as shown, the locking-lip of either plate being adapted to rest within the channel of the other when the two said plates are locked together as described.

2. In combination with the side rail and post of a bedstead, the plates F and G, each being provided with a longitudinal inclined lockinglip and. channel parallel with said locking-lip, substantially as shown, the lockinglip of either plate being adapted to rest within the channel of the other when the two said plates are locked together, means being provided to prevent said plates from sliding by each other and binding by friction on account of the tapering or wedge-shaped parts of the plates.

3. In combination with a post and side rail of a bedstead, the locking-plates F and G, substantially as shown and described, secured to the respective surfaces of the post and side rail-that is to say, secured to said post and side rail withoutbeingletinto the timberof the same, substantially as set forth and shown.

4. In combination with the side rail and post of a bedstead, the plates F and G, each being provided with a locking-lip and channel, substan tially as shown,the plate F beingprovided with the shoulder or guide-lineg, substantially as and for the purpose set forth.

CHAS. H. CLARK.

Witnesses:

E. B. WHI'IMORE, M. D. PHILLIPS. 

